Abstract: A device for connecting movable elements such as wheelchairs or gurneys to a vehicle body for transportation has a clamping assembly mounted on a threaded rod which is secured to the vehicle body at its one end. The clamping assembly includes a fork member for engaging the movable element and a nut coupled to the fork member. The nut has a threaded bore and an intersecting inclined passing bore of larger diameter. When the device is not under load, the nut can be tilted so that the assembly can slide easily along the rod via the passing bore. When the assembly is under load the nut is locked on the rod via the threaded bore.

Abstract: A vehicle wheel and adapter allowing the wheel to be fastened by means of a single knock-off type hub nut to a disk brake hub or brake drum of a vehicle utilizing wheels of the type that are attached by a plurality of lug bolts or lug nuts includes a circular adapter plate provided with mounting holes to permit the adapter to be attached using existing lug bolts or lug nuts. The adapter plate has an axially forwardly protruding central coaxial tube section externally threaded on an outer axial portion thereof, and a plurality of longitudinally disposed, arcuate transverse section splines protruding radially outwards from an intermediate longitudinal portion of the tube section. A wheel hub having a tubular front section and a larger diameter, dish-shaped rear section has an internally splined intermediate longitudinal portion provided with grooves adapted to longitudinally slidably receive the splines.

Abstract: A screw and grommet fastener assembly for securing two mating panels together where the grommet absorbs variations in the relative positions of the panels and allows for expansion of a body portion thereof during insertion of the screw to withstand higher torques from screws of different sizes and dimensions without causing damage to the grommet.

Abstract: The invention relates to a metal plate (10) with a screw bore (16) starting at one narrow side of the plate and running parallel to the plate surfaces (10a,b), which screw bore (16) is formed in a simple manner in that first recesses, for example through holes (11), are provided and subsequently the metal portions (13) formed between the recesses (11) are alternately stamped in the direction of the one and the other plate surface (10a, 10b), such that the outer surfaces (14a, 15a) of the stamped parts lie flush with the relevant plate surfaces (10a, 10b).

Abstract: A stud bolt clip is provided with a tube having an oblong center. Provided inside the tube are opposing first claws projecting from the inside surfaces of the long sides of the tube, and opposing second claws projecting from the inside surfaces of the short sides of the tube. The second claws are flexible, and the projection of the second claws is greater than that of the first claws. The gaps between the inside ends of the first claws and the second claws are smaller than the outside diameter of the stud bolt shank. Thus, the stud bolt clips can be positively secured to the stud bolts even when there is a difference between the stud bolt pitch and the clip pitch by absorbing the irregular shift of the stud bolt in the tube.

Abstract: A cable clip for retaining coaxial cables and the like against a mounting surface is provided which includes fastener retaining means for holding a fastening device in place prior to user installation. In one embodiment, the fastener retaining means includes a plurality of segmented arcuate-shaped wall portions which are tapered inwardly so as to resiliently grip the fastening device. In a second embodiment, the fastening retaining means includes a plurality of radially extending tabs disposed on the inner surface of a cylindrically-shaped fastener hole for frictional engagement with the fastener device with a retention fit.

Abstract: A releasable quick-coupling fastener assembly includes a backing sheet (22) having a number of apertured ovaloid bosses (24, 76-90) each presenting a resilient inboard wall structure (108) and resilient inner connective walls (110 and 112) from which depend inwardly extending lip members (118 and 120). The assembly further includes a threaded member (20) having a head (26) and a helically flighted shank (38) for insertion within a boss aperture (106) through a straight application of force by which the shank thread structure (40-54) deformably engages the lip members (118 and 120). The threaded member (20) and be released from engagement with the boss (e.g., 24) through counterclockwise rotation.

Abstract: An adjustable-height post (10) for construction formwork, which is preferably made of aluminum, consists of an outer tube (12) to which a threaded nut is fastened in a lossproof manner, and an inner tube (11) that has thread segments (13, 14) on the outer surface. The segments (13, 13', 13", 13'") project into recesses (19, 19', 19", 19'") of the outer tube (12). This embodiment produces a robust post (10) whose inner tube (11) is nonrotatably supported and guided in the outer tube (12). The inner tube (11) can more easily be manufactured with the threads (14) according to the invention; at the same time, material can be saved in the manufacture of the post (10).

Abstract: A tubular conduit support for supporting pipes and similar members from a threaded rod including a base member, a pair of C-shaped threaded clips for mounting the support on the threaded rod and a U-shaped clamp on the other side of the base member for supporting the pipe. Resilient fingers maintain the rod in place in the threaded clamps and the pipe in place in the U-shaped clamp.

Abstract: A mat fastener comprises a cylindrical main body having a central insertion hole and engagement claws projecting from the inner surface of the insertion hole, a retainer provided around the lower periphery of the cylindrical body defining the main body and consisting of a pair of vertically spaced upper and lower retaining members, and an operating member provided on the upper periphery of the main body or the upper retaining member.

Abstract: A cleaning device (10) for a threaded shaft (12) having a cleaning member (34) having a threaded recess (42) received on the shaft (12) and extending partially around the shaft (12) with the threads (44) of the cleaning member (34) meshing with the threads (14) of the shaft (12).

Abstract: A nut for turning onto a threaded stud and having a smooth bore extending from an inwardly-tapering conical lead-in area, the nut being characterized in that in the lead-in area a stripping zone is formed by a plurality of parallel tubular cavities of smaller diameter than the bore of the nut, in that the cavities are spaced apart and arranged symmetrically about the axis of the bore of the nut, in that the axis of each tubular cavity is spaced from the axis of the bore of the nut by a distance smaller than the sum of the radii of the tubular cavity and of the bore and greater than the radius of the bore, in that the intersections of the walls of each tubular cavity with the wall of the bore of the nut form cutting edges, and in that the respectively adjacent tubular cavities are linked to one another via cavities provided therebetween so that a coating stripped from the threaded stud as the nut is turned onto the stud can be accommodated in this cavity.

Abstract: An arresting device for force-transmitting fixing of two relatively movable parts, particularly for cutting angle or cutting depth adjustment of electric hand saws, the arresting device has a pin having a radially extending pressing surface for pressing against one of the parts, a clamping element having a pressing surface for pressing against another of the parts and arranged on the pin so that by a relative turning of the clamping element and the pin the pressing surfaces are moved toward one another for producing a clamping and from one another for releasing the clamping. The clamping element is formed as a hand lever having a clamping sleeve and a lever arm extending from the clamping sleeve. The clamping sleeve is turnably arranged on the pin and has a clamping collar extending over the lever arm and provided with a ring-shaped end surface forming the pressing surface of the clamping element.

Abstract: This invention relates to a bolt having a tapered tip comprising of corresponding opposite flat and partially threaded portions that engage an oval nut having elongated internal adjacent sides, the ends of which are void of threads to enable bolt/nut alignment when initially inserted and tightened. Additionally, the tapered threaded bolt has an arcuate shaped or rounded first and/or second thread for providing self-alignment and preventing gouging or digging of internal threads when being inserted or screwed into any conventional nut or oval shaped nut. Moreover, inadvertent contact between the bolt and nut while in the process of initial insertion will not preclude uninhibited correct bolt insertion into the nut.

Abstract: A structure for engaging a bolt is disclosed. The bolt engaging structure comprises a boss section having a cylindrical wall which defines a hole for receiving the bolt therein and an engaging portion for engaging with the bolt accommodated within the hole. The engaging portion, while slanting inwardly, extends from the cylindrical wall substantially toward a first direction in which the boss section is pulled off of the bolt. Further, the engaging portion has an abutting portion to prevent the engaging portion from being bent in a second direction which is opposite to the first direction while the boss section is forced to be pulled off of the bolt.

Abstract: An improved fastening clip of the U- or C-shaped type has a thread engaging hole in the axially opposed clip wall with a novel hole form. The perimeter surface of the hole includes a cooperating conical rim and pair of strengthening corrugations that work together to lead the fastener tip into the hole, as well as to strengthen and stiffen the surface. The corrugations also provide thread engaging bight portions close to the plane of the axially opposed clip wall, providing added fastening security with a relatively short fastener.

Abstract: A plastics push button for fastening an article such as trim strip or body panel to a motor body using weld studs attached to the surface of the motor body comprises a large circular retaining head at one end of a short, hollow cylindrical stem and a circular skirt at or near the other end of the stem, the diameter of the skirt being substantially equal to the diameter of mounting holes provided around a panel or at intervals along the length of a trim strip and the diameter of the head being greater than that of mounting holes, the skirt being provided with a plurality of protruding, resilient fringe members which can lightly engage the rim of a mounting hole and the bore of the cylindrical stem being provided with resilient fingers which can engage the projections of a weld stud when the push button is pressed through a mounting hole so that the cylindrical head abuts the top surface of the article and the cylindrical stem passes through the mounting hole and is pressed over the weld stud so that the articl

Abstract: Disclosed is a quick fastening quick releasing nut-and-bolt assembly in which the bolt has finger elements disposed along the bolt's longitudinal axis. The finger elements have sets of accurate thread segments matable with complimentary sets of radially inward facing arcuate thread segments on the inner diameter of a nut. The nut's inner diameter includes smooth semi-cylindrical surfaces circumferentially alternated with the nut's sets of thread segments. The nut has a central core body sliding upon radially inner surfaces of the finger elements so as to keep the finger elements in bearing relation with the nut's inner diameter. The assembly has a first, unlocked configuration in which the bolt's thread segments face the smooth surfaces on the nut's inner diameter. The assembly has a second, fastening configuration where the bolt's thread segments are engaged with the nut's thread segments.

Abstract: An apparatus for joining flanged, abutting duct ends or for reinforcing ducts comprises an elongated coupling member including a V-shaped portion made up of two slanting walls approaching an apex and having lower portions spaced apart a given distance. It also includes inwardly turned edges on the slanting walls spaced from the apex, extensions of the slanting walls diverging from one another as the slanting walls approach the apex extending from the slanting walls a distance about equal to the given distance, and a joining portion extending from the extensions doubling back over the apex. The extensions and the joining portions have substantial parallel segments with a curved connection between the parallel segments. The edges, slanting walls, extensions and joining portion being integrally formed of sheet metal.

Abstract: A reinforced duct includes a duct section having a peripheral skin of sheet metal, a plurality of lengths of metal straps, each strap being configured to have a cross section including a V-shape portion and inwardly turned edges spaced from the apex of the V to form a gap between the edges. The straps circumscribe the duct with the apices of the V-shapes away from the peripheral skin. A plurality of screws driven outwardly through the peripheral skin into the gaps in the circumscribing straps and engage the inwardly turned edges to bind the skin to the straps so that the straps reinforce the skin to prevent excessive flexure of the skin.

Abstract: A fastener assembly with a recess in a part in which a nut is received with resilient fingers engaging with an interference fit the periphery of the recess to retain the nut therein. A fastener with a threaded stud is engaged and retained by a threaded hole through the nut. Preferably, the nut is a relatively thin and generally flat plate with the threaded hole formed by displacing a portion of the plate around the periphery of the hole.

Abstract: An apparatus for mounting a shearing blade specifically for use in a cut-off die set of the type used to cut tubing continuously emanating from a mill. The present invention is directed toward the shearing blade assembly used in conjunction with the notching blade of the cut-off die set. The subject device includes a mounting block fixed to the upper platen of the die set, a shearing blade mounted in a shearing blade cartridge, and a locking stud rotatably mounted on the mounting block which threadably engages and secures the shearing blade cartridge to the mounting block.

Abstract: The present invention is an improved quick release locking nut for quick change type mop holders. The mop holder has a frame attachable to a mop stick and a clamping member for securing mop fill. The quick release locking nut is slidably mounted on a central shank of the frame, and has a pivotally mounted pawl which is biased by a spring. The inner screw threads on the tip of the pawl are engaged with the outer screw threads on the central shank, in order to lock the quick release locking nut on the central shank for preventing the clamping member from sliding on the central shank. When the pawl is pressed against the spring and its tip is disengaged from the central shank, the quick release locking nut is unlocked and can be slid on the central shank for allowing the clamping member to slide on the central shank so that the mop clamp can be released.

Abstract: An insulation retainer is provided for mounting upon the threads of a threaded stud so as to retain insulation of various thicknesses upon a substrate to which the stud is attached. The insulation retainer includes an outer body member and an inner body member. Adjustment means are formed upon the interior surface of the outer body member and upon the exterior surface of the inner body member so as to permit ratcheting of the outer body member over the inner body member in small increments so as to accommodate various thicknesses of insulation to be retained upon the substrate.

Abstract: A pushnut fastener for engagement on a cylindrical stud and particularly suited for conveying to the point of use through automatic feed systems comprises a metal body of relatively thin, uniform thickness having oppositely facing first and second exterior surfaces and a circular radial outer marginal periphery. A central opening extends axially through the body between the oppositely facing exterior surfaces and defines a generally circular inner marginal periphery having resilient finger-like engagement portions for engaging and gripping the exterior of the cylindrical stud. The finger-like engagement portions are inclined to extend laterally of the body outwardly of the first exterior surface a maximum distance of d.

Abstract: A cleaning device (10) for a threaded shaft (12) having a cleaning member (34) having a threaded recess (42) received on the shaft (12) and extending partially around the shaft (12) with the threads (44) of the cleaning member (34) meshing with the threads (14) of the shaft (12).

Abstract: A high-speed nut having two jaws capable of taking up two positions, one in which the central tapping is not engaged with a threaded rod, and a second in which the tapping is engaged therewith. According to the invention, the nut comprises two pieces (10, 11) which are hinged to each other about an axis (13), with pivoting of the pieces being caused by the front portion (15) of the pieces coming into contact with the object to be clamped.

Abstract: A power clamp is provided that clamps the workpiece when the piston rod is retracted into the cylinder housing thereby preventing damage to the rod and clamp components that could occur from weld flash and other debris created while operations are performed on the workpiece. Other features are disclosed which increase reliability and enable a variety of different arms to be used with the basic clamp construction.

Abstract: A fastener which includes a threaded shank and a head. An anchor is pivotally connected to the threaded shank by a dimpled thread and is designed to pivot after the leading edge has cleared the mounting surface.

Abstract: A sheet metal nut made having a scalloped construction including a tubular barrel portion having a plurality of alternate radially inwardly and radially outwardly and axially extending lobes with a thread formed on the inner lobes which thread form is circumferentially interrupted by virtue of the radial displacement between inner and outer lobes and in one form of the invention the barrel portion having a ring with a continuous thread formed at its outer end to facilitate sealing.

Abstract: A hat-shaped push-on fastener for telescopic application to a male member comprises a single piece structure with an annular flange defining a washer-like base and an inverted cup with the bottom of the cup constituting the top of the hat formation. The side wall of the cup is a cylindrical sleeve perpendicular to the washer-like base and adatped to closely surround the male member to which the fastener is telescopically applied. A pair of relatively rigid and inflexible teeth have tips extending radially inward and axially upward. The teeth are located on diametrically opposite sides of the sleeve and are struck inwardly from the metal of the sleeve.

Abstract: A push-in fastener (50) is provided having a base portion (4) having a threaded aperture (11) for receiving a threaded member (8) therethrough and from which a pair of spaced-apart resilient legs (14,14') extend that are configured to contract towards each other sufficiently to be received through an opening (16) through a workpiece (12) and then expand to secure fastener (50) thereto yet have respective free-ends (18,18') that are lockingly engaged together by a tab (20) in one of legs (14,14') to prevent warpage and undesirable movement in the legs (14,14').

Abstract: A telescopic connector which may be varied in length and a method for installing the connector is disclosed. The connector includes telescoping male and female members which are joined by the action of a spring, which functions as a lockring, positioned in recesses in the two members. The spring possesses at least one release finger at one of its ends, the release fingers extending through an opening in the female member. The recess in the female member includes a shoulder portion and at least one cam surface. The recess on the male member may be either a recess comprising a shoulder portion and cam surface or a recess created between threads on the outer periphery of the male member. The cam surfaces restrict movement between the telescoping members until such time as the release fingers are manipulated to expand the spring, causing the spring to position within the shoulder of the female member, providing clearance between the spring and the male member which allows for two-way movement.

Abstract: A plastic hex shaped tubular fastener which is to be secured to a threaded stud. A plurality of spaced flexible tongues which project radially inwardly near the bottom of the body locate within the screw of the stud when pushed on the stud and when so located projecting cams carried on vertical ribs spaced from the tongues locate within the screw thread so that the fastener can then be screwed tight.

Abstract: An essentially ring shaped member such as a stop ring is formed of an elastic material and has a gap at one section thereof. A removable spacer having a handle is disposed in the gap so as to expand the diameter of the ring shaped member. Removal of the spacer causes the elastic member to resiliently return to a condition in which its diameter is decreased. This arrangement facilitates fast and easy installation of the ring shaped member into an annular or in some cases helical groove formed in a cylindrical member.

Abstract: The invention provides a screw nut comprising a central inner thread and a radially extending slit, the width thereof essentially corresponding to the diameter of the central inner thread. Thus, a threaded bolt or a threaded stud can be radially inserted into said screw nut body. In order to avoid that the screw nut is displaced away from the threaded bolt or stud during tightening of the screw nut, the central inner thread comprises a plurality of thread turns provided with axially extending recesses directed towards the end surface of the screw nut which is under load when the screw nut is tightened on the threaded bolt or stud.

Abstract: An electrical wiring box for mounting an electrical device therein by means of push inserted screws is provided. The box is defined in part by a pair of parallel spaced sidewalls and a pair of parallel spaced end walls. A mounting bracket is formed on each end wall for the snap mounting of a resilient screw receiving spring clip. Each spring clip is formed of a strip of resilient metal bent to define a base portion, upwardly disposed side portions and inwardly disposed top portions, such that the ends of the strip are positioned adjacent one another. The ends of the top portions are bent downwardly and inwardly of the clip to define a spring receiving space therebetween. The base portion has a spring receiving opening defined by a pair of downwardly bent tabs which is aligned with the space defined by the ends of the strip. In operation the spring clips are snapped into engagement with the respective brackets and the electrical device positioned within the wiring box for mounting.

Abstract: A power clamp is provided that clamps the workpiece when the piston rod is retracted into the cylinder housing thereby preventing damage to the rod and clamp components that could occur from weld flash and other debris created while operations are performed on the workpiece. Other features are disclosed which increase reliability and enable a variety of different arms to be used with the basic clamp construction.

Abstract: A split nut is made of elastic material that deflects under manual pressure. Each nut half has a projecting bead and a keyhole recess. The beads removably fit into the keyhole recesses to hold the nut halves together. Radial fins permit rotation by air jet and enlarge the size of the nut halves to make manual disassembly easier.

Abstract: A plastic part 1 for engagement with threaded bolts, especially coarsely threaded bolts, includes an opening 2 with several elastic catch points 3 which, in the zone of engagement with the threads of the bolts, are provided with stepped graduations. Guide elements are located in the interspaces between the catch points 3 and are distributed in spaced relationship over the circumference of the opening 2. The guide elements 4 are designed springy or resilient and may be, for example, resilient hollow bodies or springy stays.

Abstract: A bushing cooperates with a bolt and a winged toggle member to form a toggle bolt assembly. The bushing has a maximum cross-sectional dimension substantially equal to the diameter of the hole in the wall or other support member to which the toggle bolt assembly is to fasten an object and an inside diameter permitting passage of the bolt therethrough. To fasten an object to a wall, the bolt is passed through an opening in the object and through the bushing and threadedly engaged in the toggle member. The toggle member wings are folded, and the toggle member is passed through the hole in the wall until the wings open. The bushing is inserted into the hole and held in place while the bolt is pulled outward until the opened toggle wings abut the inner surface of the wall, inhibiting rotation of the toggle member as the bolt is rotated. The bolt is then threadedly tightened in the toggle member, drawing the object and the wings into further engagement with the opposite surfaces of the wall.

Abstract: A push on fastener 10, 48, 70, 78 comprised of a supporting base 12, 54, 80, a body with threaded nut portions 20, 58, 86 and a split annular web 16, 56, which extends inwardly from one side of the supporting base to the threaded nut portions. The split annular web enables the fastener to be firmly tightened and eliminates the possibility of back slippage.

Abstract: A simplified nut having a substitute "thread" in the form of an edged flat which can receive a threaded member. The flat or flats are swedged from material preferably in sheet form surrounding a smooth bore opening in which the flat(s) entirely extend. The edges of the flat(s) may be circular or helical, continuous or discontinuous. The device and its forming method eliminates separate handling and cleanup associated with conventional thread forming methods.

Abstract: An electrical wiring box assembly includes a non-metallic electrical box, a metallic grounding plate and a conducting clip. The electrical box includes a pair of mounting lugs for releasably fastening a wiring device. The grounding plate includes a central portion having a downwardly extending coupling flange frictionally retained in a slot formed in one of the box mounting lugs. The grounding plate further includes a pair of connecting portions extending downwardly from the central portion, each having an extending outwardly leg. The conducting clip includes a flat body portion and a raised portion. The flat body portion has a slot for receiving the coupling flange of the grounding plate and a self tapping hole for receiving a mounting screw. The raised portion includes a hole and a plurality of tabs formed by radially extending slits. The hole is slightly smaller than the diameter of the mounting screw.

Abstract: An improved fastening nut is disclosed which is secured to an unthreaded stud which is inserted through a central bore in the nut. The bore includes a guide and retaining splines which provides alignment guidance during sliding insertion of the stud into the bore. The guide splines preferably has an annular configuration with an inner diameter slightly larger than the diameter of the stud so that the initial insertion of the stud does not produce significant frictional resistance. The bore of the nut further includes a plurality of helical threads, preferably twin leads having equal pitch, which are disposed in the bore axially distinct from the guide and retaining splines and terminate within the bore adjacent the guide and retaining splines. The internal helical threads have a crest diameter smaller than the stud diameter and also projects radially inwardly into the bore further than the guide and retaining splines.

Abstract: An improved connection assembly which saves space and eliminates the need for many conventional fastener means such as nuts and flanges. The assembly includes a receptacle for accepting and engagement member, wherein a small amount of clearance is present between the receptacle and the engagement member. The engagement member includes a slot having two substantially parallel surfaces. A threaded fastener is used to fix the engagement member within the receptacle by passing the fastener through an opening in the bottom of the receptacle and causing the threads of the fastener to cut into and engage the surfaces of the slot.

Abstract: A push-nut type fastener for use on a threaded stud comprises a thin planar metal plate having an aperture formed therethrough with its axis perpendicular to the plane of the plate. A first plurality of resilient fingers is formed integrally with the metal plate to extend radially inward from the periphery of the aperture at uniformly spaced locations with the inner ends of the fingers located generally on an imaginary circle having a diameter substantially less than the crest diameter but greater than the root diameter of the threaded stud. A second plurality of resilient finger members extends radially inward from the periphery of the aperture at locations intermediate the resilient fingers in the first plurality.

Abstract: A female threaded fastener, such as a nut, for preventing cross threading with a male threaded fastener comprises a body in which there is a threaded bore. A mouth is formed on at least one open end of the bore. The mouth has a partial thread section and a lip segment. The partial thread section has formed in it at least one partial thread. The lip section is unthreaded and may be angled radially outwardly from the bore.

Abstract: An improved self-locking nut comprising a threaded upper collar provided with longitudinal slots defining in the collar a plurality of circular arc segments compressed by a helical external spring. The slots may widen upwardly in V or U-shape to prevent the segments from contacting one another.

Abstract: A thread cleaning nut including a nut body having a central axis, first and second spaced apart faces formed on the nut body and a central aperture extending through the nut body along a central axis between the first and second faces. A screw thread is formed between the first and second faces within the central aperture wherein less than one-half of the first face is shaped as a first flat surface and more than one-half of the first face is shaped as a second flat surface inclined at an actue angle to the first flat surface. An end portion of the screw thread between the first and second surfaces is exposed to define at least one cutting tooth for cutting a path for the screw thread. The first and second surfaces intersect a third flat surface. The third flat surface intersects the central aperture at a position spaced from the central axis and it intersects the end portion of the screw thread at an acute angle to define a cutting edge of the at least one cutting tooth.